he kicks off our special coverage this week on job retraining. >> reporter: employers will tell you it's hard to find skilled workers. and both president obama and governor romney agree we need more effective programs to help people develop the skills to handle high-wage jobs. president obama is backing an $8 billion fund to help community colleges connect with businesses on workforce development. >> we've got to train our workers to fill good jobs. let's help give two million workers the chance to learn the skills they need at community colleges that will lead directly to a job. >> reporter: but government auditors report most federal job-training programs have not done the expensive studies needed to determine whether or not they are effective. and those that have done impact studies find only small or short-term benefits from job training. >> which i think is remarkable that, after five decades, that the main federal auditor, the g.a.o., can't really find that these programs work really well at all. >> reporter: but governor romney still talks up job training. he backs personal reempl